<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区 -->
      <div class="avater_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 登录表单区 -->
      <el-form :model ='loginFrom' label-width="0px" class="login_from" :rules="loginFromRules" ref="loginFromRef">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input v-model="loginFrom.username"  prefix-icon='iconfont icon-user'></el-input>
        </el-form-item>

        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input  v-model="loginFrom.password" prefix-icon='iconfont icon-3702mima' type="password"></el-input>
        </el-form-item>

        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="primary" @click="resetLoginFrom">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data () {
    return {
      // 这是登录表单的数据对象
      loginFrom: {
        username: 'admin',
        password: '123456'
      },
      // 这是表单的验证规则对象
      loginFromRules: {
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 3, max: 15, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    resetLoginFrom () {
      this.$refs.loginFromRef.resetFields()
    },
    login () {
      this.$refs.loginFromRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginFrom)
        if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
        this.$message.success('登录成功')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
        console.log(res)
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  filter: drop-shadow(0 0 10px #ddd) ;

  .avater_box {
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 130px;
    height: 130px;
    border-radius: 50%;
    padding: 10px;
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #fff;
    }
  }
}

.btns {
  display: flex;
  justify-content: flex-end;
}
.login_from {
position: absolute;
bottom: 0;
width: 100%;
padding: 20px;
box-sizing: border-box;
}
</style>
